Errors and Omissions (E&O) insurance is a key protection for professionals in Ontario. It shields businesses and individuals against claims of negligence, mistakes, or failure to deliver promised services. While most professionals understand why E&O insurance is important, many ask a practical question: how much does it cost?
This guide breaks down average costs, the factors that shape premiums, and why using a brokerage like Buckler Insurance can make a significant difference.
Related Article: Why Do I Need Personal Liability Insurance?
What Is Errors and Omissions Insurance?
Errors and Omissions insurance, also known as professional liability insurance, covers legal costs and damages if a client alleges that your services caused financial harm. It goes beyond general liability, which typically covers physical injuries or property damage.
Common professions that rely on E&O insurance include consultants, accountants, real estate agents, contractors, IT providers, and healthcare professionals. In some industries, regulators or client contracts require E&O coverage before you can operate.
Average Cost of E&O Insurance in Ontario
Premiums for E&O insurance in Ontario vary widely. On average, small businesses and independent professionals can expect annual costs between $500 and $3,000. Larger firms or businesses in higher risk industries may pay $5,000 or more per year.
To break it down further:
- Freelancers and small consultants: $500–$1,000 annually
- Mid-sized firms (5–20 employees): $1,500–$3,000 annually
- Specialized or high-risk industries: $3,500+ annually
Monthly payments are usually available, making it easier to budget for coverage without a large upfront cost.
Related Article: What Does General Liability Insurance Cover

Key Factors That Influence Cost
The cost of E&O insurance in Ontario depends on several variables. Insurers assess risk based on your business size, field of work, and claims history.
1. Industry and Risk Profile
A management consultant advising small firms may pay far less than a construction engineer whose work could expose them to multimillion-dollar claims. Industries with higher financial stakes, such as finance, IT, healthcare, or construction, tend to see higher premiums.
2. Business Size and Revenue
The more employees and revenue a business has, the higher the potential exposure. Larger firms often face higher limits on liability, which increases premiums.
3. Coverage Limits
A policy with $1 million in coverage costs less than one with $5 million. Many contracts require specific limits, so professionals must balance affordability with compliance.
4. Deductibles
Choosing a higher deductible reduces monthly or annual premiums but means you pay more out of pocket if a claim occurs.
5. Claims History
Just like auto or home insurance, a history of claims increases costs. Insurers consider both the number and severity of past claims.
6. Additional Coverage
Some businesses add cyber liability or directors and officers (D&O) coverage to complement E&O. Bundling increases cost but strengthens protection.
Related Article: How Much Is General Liability Insurance
Why Professionals in Ontario Need E&O Insurance
Even careful professionals can face claims. A missed deadline, a miscalculation, or even a client misunderstanding can trigger a lawsuit. Legal defence costs alone can exceed $50,000, regardless of fault. Without coverage, a single lawsuit could put a small firm out of business.
E&O insurance provides peace of mind, allowing you to focus on delivering services without fearing that one mistake could lead to financial ruin.
Ways to Reduce Premiums
While insurance is an unavoidable expense, there are strategies to control costs:
- Work with a broker: Brokers like Buckler Insurance compare quotes from multiple insurers to find competitive rates.
- Adjust deductibles: A higher deductible reduces premiums, provided you can cover the upfront cost if a claim arises.
- Bundle policies: Combining E&O with general liability or commercial property insurance may unlock discounts.
- Maintain good records: Clear contracts, documented communications, and strong risk-management practices lower claim risks.
- Review coverage annually: As your business grows or changes, adjusting coverage can prevent overpaying.
How Buckler Insurance Helps Ontario Professionals
Buckler Insurance, established in 1959, is a trusted brokerage serving Ontario professionals and businesses. With access to a wide network of insurers, Buckler simplifies the process of finding affordable and reliable E&O coverage.
Here’s how they support clients:
- Expert guidance: Agents explain options in plain language and recommend policies that match your profession’s needs.
- Access to multiple insurers: Instead of being locked into one company, you can compare policies and pricing.
- Claims assistance: Buckler advocates for clients during the claims process to ensure fair treatment.
- 24/7 support: Emergencies can happen anytime, and Buckler provides round-the-clock service.
- User-friendly tools: Their app makes it easy to manage policies, make payments, and submit claims.
With decades of experience, Buckler Insurance helps professionals balance cost and protection without unnecessary stress.

Frequently Asked Questions About E&O Costs
Is E&O insurance mandatory in Ontario?
For certain professions, yes. Real estate agents, mortgage brokers, and healthcare providers often require it. Even when not mandatory, many clients demand proof of coverage before signing contracts.
What is a typical coverage limit?
Most small businesses in Ontario choose $1–$2 million in coverage. Larger firms or those in high-risk fields may require $5 million or more.
Can I deduct E&O premiums from my taxes?
Yes. Premiums are generally considered a business expense in Canada and can be deducted when filing taxes.
Do I need E&O insurance if I work part-time?
Yes. Even part-time consultants or freelancers face liability if a client believes they suffered losses due to your advice or service.
How do I get a quote?
The fastest way is to contact a broker like Buckler Insurance. They’ll assess your business details and provide customized quotes from multiple insurers.
Final Perspective on E&O Insurance Costs in Ontario
E&O insurance is not a one-size-fits-all product. Costs depend on your profession, business size, coverage limits, and claims history. On average, Ontario professionals can expect to spend between $500 and $3,000 annually, with higher costs in risk-heavy industries.
The key takeaway is that while E&O insurance is an expense, it is also an investment in stability. Without it, a single lawsuit could jeopardize your business and personal finances.
By working with an experienced brokerage like Buckler Insurance, you can secure affordable coverage, protect your reputation, and continue focusing on your clients with confidence.
Call today to learn more about E&O insurance.
